Clean Room Air Shower Manufacturer

How to consider the uniformity and stability of airflow in the design of air shower?

When considering the uniformity and stability of airflow, the design of the air shower can be mainly carried out from the following aspects:

Nozzle design and layout: The number, size, shape and layout of the nozzles will directly affect the uniformity of the airflow. air showers are usually designed with multiple nozzles, which are installed at a certain angle and distance on the top or both sides of the air shower.
The design of the nozzle should ensure that a uniform and consistent airflow curtain or air curtain can be produced, thereby effectively blowing away particles and microorganisms suspended on people or objects.
Air volume and wind speed control: The air shower controls the air volume and wind speed by adjusting the speed of the fan or the opening of the air outlet through the control system. Appropriate air volume and wind speed are the key to ensuring the uniformity and stability of airflow. Higher wind speed and appropriate air volume can enhance the blowing effect of the air shower, but too high wind speed may cause uneven airflow and affect the cleaning effect.
Filtration system: The filtration system in the air shower (such as HEPA or ULPA filter) also has a certain impact on the uniformity and stability of the airflow. The quality and performance of the filter will directly affect the air quality entering the air shower. Regularly replacing filters and keeping the filtration system in good condition are essential to ensure the uniformity and stability of the airflow.
Airflow optimization technology: In the design of the air shower, some airflow optimization technologies can be used to ensure the uniformity and stability of the airflow. For example, through computational fluid dynamics (CFD) simulation, the airflow distribution in the air shower can be predicted and optimized.
In addition, dynamic adjustment technology can be used to adjust the air volume, wind speed and shower time of the air shower in real time according to the entry of people or objects to achieve the best cleaning effect.
Regular maintenance and inspection: Regularly maintain and inspect the air shower, including checking the integrity, cleanliness and angle of the nozzle, as well as checking the working status of key components such as the fan, filter and control system. Through regular maintenance and inspection, problems can be discovered and solved in time to ensure that the airflow in the air shower remains uniform and stable.

When considering the uniformity and stability of the airflow, the design of the air shower needs to be comprehensively considered from multiple aspects such as nozzle design and layout, air volume and wind speed control, filtration system, airflow optimization technology, and regular maintenance and inspection.

How does the air shower work?

The working principle of the air shower can be mainly divided into the following steps, each of which plays a key role in the cleaning and purification process:

Air filtration: The air shower first filters the external air through a high-efficiency filter (such as a HEPA filter) installed at the air inlet. These filters can effectively remove pollutants such as tiny particles, bacteria, viruses, etc. in the air and improve the cleanliness of the air. The filtration efficiency of high-efficiency filters is usually very high. For example, the filtration efficiency of HEPA filters can reach more than 99.97%, and it has a good filtration effect on particles larger than 0.3 microns.
High-speed airflow injection: The filtered air is sucked in by the fan and ejected at high speed through the nozzle to form a high-speed airflow in the air shower. This high-speed airflow is ejected from the top or two sides of the air outlet at a certain wind speed (usually reaching 25m/s or more). The injection of high-speed airflow can not only quickly take away pollutants in the air, but also interact with the surface of the human body or objects to produce impact force and sweeping effect.
Impact force and sweeping effect: When high-speed airflow interacts with the surface of the human body, objects or materials, it will produce a strong impact force. This impact force can blow away pollutants on the surface of the human body or objects and make them fall off the surface. At the same time, the high-speed airflow will also produce a sweeping effect, taking the blown pollutants away from the clean area, thereby maintaining the cleanliness of the clean area.
Circulation purification: The blown dust and microorganisms and other pollutants are sucked into the pre-filter by the fan together with the air, and then purified again through the filter. Such a cycle keeps the air in the air shower at a high cleanliness level, thereby ensuring that the people or objects passing through the air shower are fully cleaned and purified.
Intelligent control: Modern air showers usually adopt fully automatic control operation, equipped with intelligent functions such as double-door electronic interlocking and automatic induction blowing. When people or objects enter the air shower, the system will automatically start the blowing program and automatically close the air shower door after the blowing is completed to prevent unpurified air from entering the clean area.

The working principle of the air shower is to achieve the cleaning and purification of the human body or objects by combining high-efficiency filters and high-speed airflow injection. At the same time, the automatic operation and efficient management of the air shower are ensured by the intelligent control system.